diff --git a/mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java b/mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java
index b7c2cb602..e5239abe3 100644
--- a/mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java
+++ b/mastodon/src/main/java/org/joinmastodon/android/fragments/ComposeFragment.java
@@ -1009,6 +1009,10 @@ public class ComposeFragment extends MastodonToolbarFragment implements OnBackPr
 	}
 
 	private void publish(){
+		publish(false);
+	}
+
+	private void publish(boolean force){
 		String text=mainEditText.getText().toString();
 		CreateStatus.Request req=new CreateStatus.Request();
 		req.status=text;
@@ -1018,6 +1022,30 @@ public class ComposeFragment extends MastodonToolbarFragment implements OnBackPr
 		req.scheduledAt = scheduledAt;
 		if(!attachments.isEmpty()){
 			req.mediaIds=attachments.stream().map(a->a.serverAttachment.id).collect(Collectors.toList());
+			Optional<DraftMediaAttachment> withoutAltText = attachments.stream().filter(a -> a.description == null || a.description.isBlank()).findFirst();
+			boolean isDraft = scheduledAt != null && scheduledAt.isAfter(DRAFTS_AFTER_INSTANT);
+			if (!force && !GlobalUserPreferences.disableAltTextReminder && !isDraft && withoutAltText.isPresent()) {
+				new M3AlertDialogBuilder(getActivity())
+						.setTitle(R.string.sk_alt_text_missing_title)
+						.setMessage(R.string.sk_alt_text_missing)
+						.setPositiveButton(R.string.add_alt_text, (d, w) -> editMediaDescription(withoutAltText.get()))
+						.setNegativeButton(R.string.sk_publish_anyway, (d, w) -> publish(true))
+						.show();
+				return;
+			}
+		}
+		// ask whether to publish now when editing an existing draft
+		if (!force && editingStatus != null && scheduledAt != null && scheduledAt.isAfter(DRAFTS_AFTER_INSTANT)) {
+			new M3AlertDialogBuilder(getActivity())
+					.setTitle(R.string.sk_save_draft)
+					.setMessage(R.string.sk_save_draft_message)
+					.setPositiveButton(R.string.save, (d, w) -> publish(true))
+					.setNegativeButton(R.string.publish, (d, w) -> {
+						updateScheduledAt(null);
+						publish();
+					})
+					.show();
+			return;
 		}
 		if(replyTo!=null || (editingStatus != null && editingStatus.inReplyToId!=null)){
 			req.inReplyToId=editingStatus!=null ? editingStatus.inReplyToId : replyTo.id;
diff --git a/mastodon/src/main/res/values/strings_sk.xml b/mastodon/src/main/res/values/strings_sk.xml
index aad11b81a..c56f06517 100644
--- a/mastodon/src/main/res/values/strings_sk.xml
+++ b/mastodon/src/main/res/values/strings_sk.xml
@@ -229,4 +229,6 @@
     <string name="sk_attach_file">Attach file</string>
     <string name="sk_searching">Searching…</string>
     <string name="sk_no_results">No results</string>
+    <string name="sk_save_draft">Save draft?</string>
+    <string name="sk_save_draft_message">Do you want to save your changes to this draft or publish it now?</string>
 </resources>
\ No newline at end of file